I'm here for the first time and I'm looking for advise regarding the safest Index investment between Total Bond and a Ginnie Mae Fund. Also, if one is looking for total safety is the Treasury Money Market Fund the safest of all?

Money market funds are the safest, in that your principal is practically guaranteed. Money markets investing solely in treasury issues are even more iron-clad, as the assets are backed by the US Government.

All bond funds give the risk of loss of principal, especially should you need to sell them at an inopportune time. GNMA funds are somewhat safer than most other bond funds, for two reasons:

1) GNMAs are backed by the US Government. Other general bond funds may have holdings in corporate bonds, giving some default risk.

2) GNMA funds tend to have shorter duration than most intermediate bond funds. A shorter duration means that the asset value will decline less, should interest rates rise. Also, it means that the fund will be quicker to recover from such losses.